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Synthetic data has been a critical tool for training scene text detection and recognition models. On the one hand, synthetic word images have proven to be a successful substitute for real images in training scene text recognizers. On the…

Computer Vision and Pattern Recognition · Computer Science 2020-08-19 Shangbang Long , Cong Yao

We propose a novel model for temporal detection and localization which allows the training of deep neural networks using only counts of event occurrences as training labels. This powerful weakly-supervised framework alleviates the burden of…

Machine Learning · Computer Science 2019-05-20 Julien Schroeter , Kirill Sidorov , David Marshall

Text detection enables us to extract rich information from images. In this paper, we focus on how to generate bounding boxes that are appropriate to grasp text areas on books to help implement automatic text detection. We attempt not to…

Computer Vision and Pattern Recognition · Computer Science 2020-06-29 Riku Anegawa , Masayoshi Aritsugi

Recognizing scene text is a challenging problem, even more so than the recognition of scanned documents. This problem has gained significant attention from the computer vision community in recent years, and several methods based on energy…

Computer Vision and Pattern Recognition · Computer Science 2016-03-24 Anand Mishra , Karteek Alahari , C. V. Jawahar

Text-based games are a popular testbed for language-based reinforcement learning (RL). In previous work, deep Q-learning is commonly used as the learning agent. Q-learning algorithms are challenging to apply to complex real-world domains…

Machine Learning · Computer Science 2023-06-28 Weichen Li , Rati Devidze , Sophie Fellenz

Weakly-supervised text classification aims to train a classifier using only class descriptions and unlabeled data. Recent research shows that keyword-driven methods can achieve state-of-the-art performance on various tasks. However, these…

Computation and Language · Computer Science 2022-12-16 Tingyu Xia , Yue Wang , Yuan Tian , Yi Chang

This manuscript presents a series of my selected contributions to the topic of label-efficient learning in computer vision and remote sensing. The central focus of this research is to develop and adapt methods that can learn effectively…

Computer Vision and Pattern Recognition · Computer Science 2025-08-25 Minh-Tan Pham

Until recently, the number of public real-world text images was insufficient for training scene text recognizers. Therefore, most modern training methods rely on synthetic data and operate in a fully supervised manner. Nevertheless, the…

Computer Vision and Pattern Recognition · Computer Science 2022-05-10 Aviad Aberdam , Roy Ganz , Shai Mazor , Ron Litman

Distant supervision has become the standard method for relation extraction. However, even though it is an efficient method, it does not come at no cost---The resulted distantly-supervised training samples are often very noisy. To combat the…

Computation and Language · Computer Science 2018-05-28 Pengda Qin , Weiran Xu , William Yang Wang

The recent large-scale Contrastive Language-Image Pretraining (CLIP) model has shown great potential in various downstream tasks via leveraging the pretrained vision and language knowledge. Scene text, which contains rich textual and visual…

Computer Vision and Pattern Recognition · Computer Science 2023-03-28 Wenwen Yu , Yuliang Liu , Wei Hua , Deqiang Jiang , Bo Ren , Xiang Bai

Fight detection in videos is an emerging deep learning application with today's prevalence of surveillance systems and streaming media. Previous work has largely relied on action recognition techniques to tackle this problem. In this paper,…

Computer Vision and Pattern Recognition · Computer Science 2022-09-26 Zhenting Qi , Ruike Zhu , Zheyu Fu , Wenhao Chai , Volodymyr Kindratenko

Temporal grounding of natural language in untrimmed videos is a fundamental yet challenging multimedia task facilitating cross-media visual content retrieval. We focus on the weakly supervised setting of this task that merely accesses to…

Computer Vision and Pattern Recognition · Computer Science 2020-09-21 Jie Wu , Guanbin Li , Xiaoguang Han , Liang Lin

Scene text detection is an important step of scene text reading system. The main challenges lie on significantly varied sizes and aspect ratios, arbitrary orientations and shapes. Driven by recent progress in deep learning, impressive…

Computer Vision and Pattern Recognition · Computer Science 2019-10-02 Yongchao Xu , Yukang Wang , Wei Zhou , Yongpan Wang , Zhibo Yang , Xiang Bai

Weakly supervised learning is a popular approach for training machine learning models in low-resource settings. Instead of requesting high-quality yet costly human annotations, it allows training models with noisy annotations obtained from…

Computation and Language · Computer Science 2023-09-19 Dawei Zhu , Xiaoyu Shen , Marius Mosbach , Andreas Stephan , Dietrich Klakow

Classical pixel-based Visual Servoing (VS) approaches offer high accuracy but suffer from a limited convergence area due to optimization nonlinearity. Modern deep learning-based VS methods overcome traditional vision issues but lack…

Robotics · Computer Science 2023-10-03 Salar Asayesh , Hossein Sheikhi Darani , Mo chen , Mehran Mehrandezh , Kamal Gupta

Text in natural images contains rich semantics that are often highly relevant to objects or scene. In this paper, we focus on the problem of fully exploiting scene text for visual understanding. The main idea is combining word…

Computer Vision and Pattern Recognition · Computer Science 2017-05-31 Xiang Bai , Mingkun Yang , Pengyuan Lyu , Yongchao Xu , Jiebo Luo

Audio Event Detection is an important task for content analysis of multimedia data. Most of the current works on detection of audio events is driven through supervised learning approaches. We propose a weakly supervised learning framework…

Sound · Computer Science 2016-06-14 Anurag Kumar , Bhiksha Raj

In this paper, we propose a method for keypoint discovery from a 2D image using image-level supervision. Recent works on unsupervised keypoint discovery reliably discover keypoints of aligned instances. However, when the target instances…

Computer Vision and Pattern Recognition · Computer Science 2021-09-29 Serim Ryou , Pietro Perona

There have been a few recent methods proposed in text to video moment retrieval using natural language queries, but requiring full supervision during training. However, acquiring a large number of training videos with temporal boundary…

Computer Vision and Pattern Recognition · Computer Science 2019-09-06 Niluthpol Chowdhury Mithun , Sujoy Paul , Amit K. Roy-Chowdhury

This research presents a novel active detection model utilizing deep reinforcement learning to accurately detect traffic objects in real-world scenarios. The model employs a deep Q-network based on LSTM-CNN that identifies and aligns target…

Computer Vision and Pattern Recognition · Computer Science 2023-12-27 Xinyu Ren , Ruixuan Wang